Hydroxyapatite whisker reinforced glass ceramic dish and preparation method thereof

A technology of hydroxyapatite and glass ceramics, which is applied in the field of ceramic materials, can solve problems such as failure to meet market demand, easy cracking, and poor mechanical properties, and achieve good strengthening and toughening effects, prolonging service life, and reducing cracking.

Inactive Publication Date: 2015-10-14
ANHUI YIMIN IND & TRADE GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the rapid development of science and technology and the continuous improvement of living standards, people have higher and higher requirements for the quality and performance of glass-ceramic discs. At present, glass-ceramic discs in the domestic market still have the disadvantage of poor mechanical properties. Cracks are prone to occur during use, which cannot meet market demand

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] A hydroxyapatite whisker-reinforced glass-ceramic dish made from the following raw materials by weight (kg): cullet 25, hydroxyapatite whiskers 8, basalt 16, hornblende 12, fuchsia salt 5, coal Powder 3, analcime 12, golden sandstone 8, limestone 12, manganese sulfate 2.5, barium metaphosphate 5, additive 7;

[0015] The additives are mixed with the following raw materials by weight (kg): saltpeter powder 3, coke powder 2, potassium hydrogen tartrate 3.5, animal ashes 5, waste brick powder 3, lanthanum carbonate 1.5, yttrium oxalate 0.7, magnesium nitride 4. Fused calcium aluminate 4;

[0016] A method for preparing a hydroxyapatite whisker-reinforced glass-ceramic disc, comprising the following steps:

[0017] (1) Mix basalt, hornblende, analcime, gold sandstone and limestone evenly, crush them, pass through a 120-mesh sieve, add an appropriate amount of water to make a slurry with a concentration of 50%, and then adjust the pH of the slurry with 25% hydrochloric acid...

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Abstract

The invention discloses a hydroxyapatite whisker reinforced glass ceramic dish and a preparation method thereof. The hydroxyapatite whisker reinforced glass ceramic dish is prepared from the following raw materials in parts by weight: 20-30 parts of broken glass, 5-10 parts of hydroxyapatite whisker, 12-18 parts of basalt, 10-15 parts of hornblende, 4-7 parts of violaceous halite, 2-4 parts of coal powder, 8-14 parts of analcite, 5-10 parts of goldstone, 10-15 parts of limestone, 2-3 parts of manganese sulfate, 4-6 parts of barium metaphosphate and 6-8 parts of auxiliary agent. In the invention, the hydroxyapatite whisker is composited with glass ceramic matrixes, so that a very good strength and toughness enhancing effect is achieved, and the mechanical property of the glass ceramic dish is greatly improved. The breaking strength of the prepared glass ceramic dish is greater than or equal to 400 MPa, and the fracture toughness is greater than or equal to 4.5 MPa.m1 / 2. Fracture during use of the glass ceramic dish is significantly reduced, and the service life of the glass ceramic dish is prolonged.

Description

technical field [0001] The invention relates to a hydroxyapatite whisker-reinforced glass ceramic plate and a preparation method thereof, belonging to the field of ceramic materials. Background technique [0002] Ceramic glass, also known as glass-ceramic, is a kind of composite material combined with crystal phase and glass made through high-temperature melting, molding, and heat treatment. A new type of silicate material, which is a dense, non-porous and uniform mixture composed of crystal phase and residual glass phase. Usually the size of crystals can be from nanometer to micrometer, and the number of crystals can reach 50% to 90%. It has high mechanical strength, low electrical conductivity, high dielectric constant, good machining performance, thermal stability, etc., and is widely used in daily utensils. With the rapid development of science and technology and the continuous improvement of living standards, people have higher and higher requirements for the quality ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/81C04B35/622
Inventor 刘志勇
Owner ANHUI YIMIN IND & TRADE GRP CO LTD
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